Marshall Amplification JCM900 SL-X 2100 User Manual

JCM900
Handbook
1
Marshall Amplification plc
Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England
Tel: (01908) 375411
Fax: (01908) 376118
Web Site - http://www.marshallamps.com
Whilst the information contained herein is correct at the time of publication,
due to our policy of constant improvement and development, Marshall
Amplification plc reserve the right to alter specifications without prior notice.
Nov ‘98
SL-X 2100 & SL-X 2500
Master Volume Models
&
4100, 4500, 4101, 4102, 4501 & 4502
Dual Reverb Models

Marshall Amplification JCM900 SL-X 2100 Specifications

General

Brand	Marshall Amplification
Model	JCM900 SL-X 2100
Category	Musical Instrument Amplifier
Language	English

Summary

Safety and Introduction

General Safety Precautions

Essential safety guidelines for operating the amplifier, covering mains connection, servicing, and environmental conditions.

Marshall's Valve Amplification History

Overview of Marshall's expertise in valve amplification since 1962 and its role in the 'Sound of Rock'.

JCM900 Model Overview

Introduces the two main JCM900 product ranges: Master Volume SL-X and Dual Reverb.

Model Series Features

Hi Gain Master Volume SL-X Details

Explains the SL-X's advanced gain stage, twin gain controls, and footswitchable master volumes.

Hi Gain Dual Reverb Details

Details the Dual Reverb's versatile two-channel design, distinct voicings, and independent reverb controls.

Valve Output Power Explanation

Discusses the role of 5881 output valves and achieving desired sounds via master volume settings.

Front Panel Functions

SL-X Models (2100 & 2500) Controls

Details the front panel controls for the SL-X models, including Input Jack, Pre-Amp Volume, and Gain Sensitivity.

SL-X Master Volume and EQ Controls

Explains the dual master volumes, equalization circuit, and associated indicators for SL-X models.

Dual Reverb Models (4100-4502) Controls

Details front panel controls for Dual Reverb models, including Channel Gain, Reverb, and Master Volume.

Rear Panel Functions

Common Rear Panel Features

Details common rear panel controls for both SL-X and Dual Reverb models like Effects Loop and Impedance Selector.

50 Watt Models (2500, 4500, 4501, 4502) Rear Panel

Specific rear panel connections and controls for 50 Watt models including Output Mode and Mains Input.

100 Watt Models (2100, 4100, 4101, 4102) Rear Panel

Specific rear panel connections and controls for 100 Watt models including Valve Failure indicators and Mains Input.